<template>
  <div>
    <el-dialog :title="form._id ? '修改' : '新增'" :visible.sync="dialogFormVisible" width="400px">
      <el-form :model="form" ref="form" :rules="rules" label-width="100px">
        <el-form-item label="图片" prop="img">
          <div @click="openFile" style="overflow:hidden;width:100px;height:100px;font-size:32px;border:1px dashed #ccc;text-align:center;line-height:100px">
            <img style="max-width:100%;max-height:100%" v-if="form.img" :src="form.img" />
            <span v-else>+</span>
          </div>
          <input ref="file" style="display:none;" multiple accept="image/*" type="file" @change="changeFile" />
        </el-form-item>
        <el-form-item label="标题" prop="title">
          <el-input type="text" v-model="form.title"></el-input>
        </el-form-item>
        <el-form-item label="跳转地址" prop="url">
          <el-input type="text" v-model="form.url"></el-input>
        </el-form-item>
        <el-form-item label="类型" prop="type">
          <el-select v-model="form.type" placeholder="请选择">
            <el-option
              v-for="type in types"
              :key="type.value"
              :label="type.label"
              :value="type.value">
            </el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="submit">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import api from '@/api'

export default {
  name: "shouyeBannerEdit",
  components: {},
  data() {
    return{
      dialogFormVisible:false,
      form:{
        _id:0,
        img:'',
        type:'banner',
        url:'',
        title:''
      },
      rules:{
        img:[
          { required: true, message: '图片不能为空', trigger: 'blur' }
        ],
        title:[
          { required: true, message: '标题不能为空', trigger: 'blur' }
        ]
      },
      types:[
        {label:'轮播图',value:'banner'},
        {label:'分类',value:'category'},
        {label:'为你推荐',value:'recommend'},
      ],
    }
  },
  methods: {
    add(){
      ///初始化
      this.form = {
         _id:0,
        img:'',
        type:'banner',
        url:'',
        status:1,
        title:''
      }
      this.dialogFormVisible = true
    },
    openFile(){
      let fileElement = this.$refs.file
      fileElement.click()
    },
    changeFile(e){
      let files = e.target.files
      let formData = new FormData()
      formData.append('file',files[0])

      this.$http({
        url:'/upload',
        method:'POST',
        data:formData
      }).then(res => {
        console.log(res)///找到可用的filename
        if(res.filename) this.form.img = api.baseURL + '/uploads/' + res.filename  
        // if(res.path) this.form.img = api.baseURL + '\\' + res.path
      })
    },
    submit(){
      this.$refs.form.validate(valid => {
        if(valid){
          this.form.indexId = this.form._id
          this.$http({
            url:'/admin/index',
            method:this.form.indexId ? 'PUT' : 'POST',///通过indexId判断新增或修改
            data:this.form
          }).then(res => {
            if(!res.errorMsg){
              this.dialogFormVisible = false
              this.$emit('load',this.form.indexId ? undefined : 1)
            }
          })
        }
      })
    },
    edit(row){
      this.form = row
      this.dialogFormVisible = true
    }

  },
  created() {

  },
  mounted() {}
};
</script>

<style scoped>
  .data{
    width: 98%;
    height: 50px;
    background-color: #ffffff;
    margin-top: 30px;
    margin-left: 1%;
  }
  .searchForm{
    position: absolute;
    margin-top: 5px;
    margin-left: 10px;
  }
  .message{
    margin-top: 10px;
    width: 98%;
    margin-left: 1%;
  }
  .pagination{
    margin-top: 5px;
    margin-left: 10px;
  }
</style>